Chang et al, New Hydrogen Aging Loss Mechanism in the 1400 nm Window, Feb. 21-26, 1999, OFC/IOOC'99 (Optical Fiber Communication Conference and the International Conference on Integrated Optics and Optical Fiber Communications, San Diego CA, USA.* |
Database WPI, Section CH, Week 198527, Derwent Publications Ltd., London, GB, Class L101 AN 1985-6751557 XP002159744 corresponding to JP 60 090852 A dated May 22, 1985. |
Databases WPI, Section CH, Week 198631, Derwent Publications Ltd., London, GB; Class L01, AN 1986-200691 XP002159745 corresponding to JP 132531 A (Sumitomo Electric Ind Co) dated Jun. 20, 1986. |